Most firm owners know exactly when they need to raise their prices. They drafted the calculation months ago. They told their partner. They walked their accountant through it.
What stops them is the letter. The wording, the tone, the moment of pressing send.
Most guides make that part the whole problem. They give you templates, a notice-period rule, and a few lines about being confident. Then they stop.
The price increase letter is the easy part. What separates firms that grow their revenue from firms that quietly leak it is what happens after the client says yes. Whether the engagement letter actually updates. Whether the next invoice charges the right amount. Whether you have to do this all over again next year.
Key takeaways
- Send the letter, then update the agreement. A signed acceptance is not a completed price increase. The change isn't operationally real until the engagement letter reflects the new rate and the next invoice charges it automatically.
- Match the consensus on notice and tone, then differentiate on retention. 30 to 60 days of notice and a confident tone are table stakes. What separates strong firms is having a clear framework for which clients are worth flexibility and which aren't.
- Build the next increase into the agreement now. An annual price-increase clause in your engagement letter, backed by a billing system that reads it, turns a yearly anxiety into a background process.
What is a price increase letter?
A price increase letter is a formal written communication from a firm to its clients notifying them of an upcoming change to pricing. It states the new rate, the effective date, and the reason for the change. It also creates a documented record of the notification that protects both parties.
Price increase letter vs. rate increase letter
The terms are interchangeable. "Rate increase" is more common in professional services and hourly billing contexts. "Price increase" is more common in retainer and product contexts. Either works for accounting firms. What matters is consistency within a client relationship: pick a term and use it across the letter, the conversation, and the updated engagement letter. (For more on rate-specific framing, see Anchor's rate increase letter guide.)
When you need a written letter vs. when a verbal conversation is enough
For long-term retainer clients, monthly bookkeeping engagements, CAS clients, and any client on a formal engagement letter, a written letter is the right move every time. The letter creates the paper trail and triggers the engagement letter update. Verbal-only is acceptable for one-off project work without a signed contract, and even then an email confirmation is worth the two minutes it takes.
When is the right time to send a price increase letter?
The best time is during a regularly scheduled review window. Most often that means the annual renewal of an engagement letter or a planned January 1 cycle. Tying the increase to a calendar moment the client already expects makes the conversation feel routine, not reactive.
During annual reviews
The annual engagement letter renewal is the most natural carrier for a price change. The client is already expecting a touch-base. The conversation is already framed around the year ahead. For most CPA firms re-engaging in January for tax season, the rate update happens in the same exchange as the engagement letter renewal.
When your costs go up
Software costs go up. Drake renewals, CCH licenses, payroll subscriptions, CPE, professional liability premiums, salary increases for retained staff. Clients are business owners. They don't need a P&L breakdown. They need an honest sentence: these costs have gone up and the rate has to follow.
When you've added value or expanded your services
A new tax manager, a CAS practice that didn't exist last year, a fractional controller offering, more frequent advisory check-ins. Every one of these expansions justifies a rate review. The framing is alignment, not begging: the firm's services have grown, and the rate is moving to match.
When you're bringing legacy clients to current rates
This is the most uncomfortable scenario. A client who has been with the firm for seven years, originally paying $400 a month for monthly bookkeeping, is now well below the rate the firm quotes new clients for the same scope. Maybe $750 is the current floor, and the gap has widened every year nobody had the conversation.
The honest framing is that the client benefited from a low rate for years and the firm absorbed the gap. A catch-up increase is a relationship investment, not a penalty for loyalty. Give 60 to 90 days of notice. If the gap is large, consider stepping the increase: half this year, half next year. The goal is to bring a B client to A-client economics without ending the relationship in the process.
How much notice should you give clients?
Per the AICPA Journal of Accountancy and broader practice management guidance, 30 to 60 days is the standard notice period for a price increase. Long-term retainer clients and increases above 10 percent deserve 60 to 90 days. The notice period gives clients time to plan around the new rate, and it gives the firm a window to update the engagement letter before the new rate takes effect.
The 30 to 60 day standard
Two months is enough for most clients to absorb the news, ask their questions, and adjust their internal budgeting. Less than 30 days reads as inconsiderate. More than 90 days for a routine increase invites the client to forget about it and react to the invoice as if it were new news.
What your contract says about pricing changes
Pull the engagement letter before drafting the increase letter. If a clause exists for annual or periodic increases, the rate change is the agreement working as written. If the engagement letter is silent, the firm has flexibility but doesn't have a documented basis for the change. Either way, the engagement letter has to be updated to reflect the new rate after the client accepts.
When to offer a transition period
For high-value clients on long retainers, an extra month or two at the old rate is a goodwill gesture worth its small cost. Not every client deserves it. The framework for which clients warrant flexibility is covered later in this post.
What to include in a price increase letter
Every price increase letter contains five elements: a clear subject line, a brief reason for the change, the new rate, the effective date, and a clear next step. Strong letters add a sixth: an explicit reference to updating the engagement letter so the change becomes part of the formal record.
Subject line and opening
The subject line should signal the topic without burying the lede. "Update on your service rates effective [date]" is direct. "Important account update" is suspicious. "Quick note about your plan" is too casual.
Open the letter with the news, not the setup. "I'm writing to let you know your monthly bookkeeping rate will move from $550 to $625 starting January 1, 2027" does the work that three paragraphs of preamble try and fail to do.
The reason for the increase
Two framings work. The cost-driven framing acknowledges that operational expenses have risen (software, salaries, compliance, CPE) and that the rate has to follow. The value-driven framing references specific service expansions, new advisory offerings, or staff additions that materially changed what the client receives. Pick one. Mixing them weakens both.
The new rate and effective date
The new rate goes in numbers, not ranges. The effective date goes in a specific month and day. Hedging language like "approximately" or "around" invites questions and undermines the firm's confidence in its own pricing. State the rate. Name the date. Move on.
A note on value and appreciation
A specific reference to recent shared work makes the appreciation real. "Thank you for trusting us with your business" is filler. "It's been a strong year working with you on the Q3 transition to the new POS system" is a real sentence between two people who know each other. If a specific moment doesn't come to mind, leave the appreciation out.
Contact information and next steps
Invite questions. Offer a quick call. The next step is also where the engagement letter update gets named: "I'll send an updated engagement letter to formalize the new rate within the next two weeks." This sentence ends the letter on a forward action and triggers the operational chain that completes the price change. Some firms manage this with a tool like Anchor, where the engagement letter and the billing system are the same record, so the agreement update flows directly into the next invoice.
What tone should you use?
Tone is where firms either keep the relationship or quietly damage it. The mechanics of the letter are easy. The way it sounds is what the client remembers.
The right tone is confident, personalized, and direct. Confident means stating the change without apology. Personalized means writing to the client specifically. Direct means using plain language a business owner would use with another business owner.
Confident, not apologetic
Cut every sentence that sounds like an apology. "I'm sorry to have to do this" goes. "I hate to ask" goes. "We regret to inform you" becomes "I'm writing to let you know."
Ed Mendlowitz, CPA, partner at WithumSmith+Brown, writing in Accounting Today, frames it usefully: an across-the-board annual increase is "a passing on of increased costs," not really a fee increase, just keeping the firm even with the previous year. If that's what the firm is doing, there's nothing to apologize for. Apology language signals doubt about the rate. Clients hear the doubt, and it invites pushback.
Personalized, not generic
Use the client's name. Reference the specific service line that's changing. The difference between "Dear valued client" and "Hi James, I wanted to walk you through a change to your monthly bookkeeping rate" is the difference between a letter the client deletes and a letter the client reads.
Direct, not corporate
Read the letter out loud before sending. If it sounds like a press release, rewrite it.
Corporate version: "Effective January 1, 2027, we will be implementing an adjustment to our service pricing structure to align with current market conditions and reinvestment in our service capabilities."
Direct version: "Starting January 1, 2027, your monthly bookkeeping rate will move from $550 to $625. The new rate covers the additional time we now spend on month-end reconciliation and quarterly advisory."
The second version gives the client a number, a date, and a reason a real person can hold in their head.
How to raise prices without losing clients
Most firms write the price increase letter assuming clients will leave. They almost never do. The clients who leave were already on their way out, and the ones who stay want to be talked to like adults who run their own businesses.
Retention through a price increase comes from four moves: lead with the value the client has already received, give long-term clients more notice than required, offer a reduced scope as a real alternative to the rate, and know in advance which clients are worth flexibility.
Lead with value before you lead with the number
Before the new rate appears in the letter, name what the client has actually received. Not "we've worked hard." Name the work. "We caught the misclassified rev rec on the Q2 close." "We restructured the entity's owner draws to reduce self-employment exposure." Specifics earn the rate increase. A generic value statement is worse than no value statement.
Give long-term clients more notice than required
For clients on the books more than five years, give 90 days instead of the standard 30 to 60. The extra time isn't about negotiating. It's about respect. Long-tenure clients have earned more runway to plan around the change.
Offer a reduced scope as an alternative
Most firms hold the rate or capitulate to the old one. There's a third option almost no one offers: change the scope.
The framing: "I want to keep working with you. The new rate reflects the work the engagement now requires. If the rate doesn't fit the budget, the most useful conversation we can have is about what we adjust. For example, monthly check-ins instead of bi-weekly, or quarterly tax planning instead of monthly."
This works because it respects the client's constraint without forcing the firm to absorb the cost. The "we'll keep working at the old rate" compromise quietly damages the relationship: the firm starts resenting the work, the work quality drifts, and the client eventually senses it. Scope reduction lets the firm hold its rate and the client hold their budget.
Know which clients are worth flexibility
Not every client warrants the same approach. Build the framework before the letters go out:
- Flex for: A clients with strong delivery history. Clients on the books more than five years. Clients who refer business consistently. Clients who pay on time and treat the firm with respect.
- Hold the line on: Late payers. Scope creep offenders. High-friction communicators who absorb disproportionate firm time. Clients on legacy rates whose engagement is unprofitable at the new rate but still painful at the old one.
The firm that negotiates with everyone has no rates, only opening offers.
Price increase letter templates
The best template is the one that matches the engagement type. The templates below are starting points. Personalize before sending.
Price increase letter for accounting firms
Subject: Update on your service rates effective January 1, 2027
Hi [Client name],
I'm writing to let you know we're updating our service rates starting January 1, 2027. Your monthly [service] will move from $[current rate] to $[new rate].
The change reflects [specific reason such as new tax manager, expanded advisory, or software upgrades that affect the work] and brings your engagement closer to the rate we're currently quoting for the same scope.
I'll send an updated engagement letter to formalize the new rate within the next two weeks. Let me know if you'd like to schedule a quick call to walk through it.
[Name]
Price increase letter for retainer clients
Subject: Adjusting your monthly retainer
Hi [Client name],
A quick update on your [service] retainer. Starting [date], your monthly fee will move from $[current] to $[new]. That's [X] percent, in line with our annual rate review.
You've been with us since [year], and the scope has expanded materially during that time: [1-2 specific examples]. The new rate reflects where the work actually is now.
I'll send an updated agreement to formalize the change. Thanks for the trust over the years.
[Name]
Price increase letter for project-based clients
Subject: Updates to project rates for [year]
Hi [Client name],
My project rates are moving up effective [date]. New proposals after this date will reflect the updated pricing. If we're already mid-engagement on a quoted project, that quote stands.
Looking forward to working together on the next one.
[Name]
Price increase letter for freelancers and consultants
Subject: A note on rates for [year]
Hi [Client name],
It's been a great year working with you. Heads-up that I'm updating my rates starting [date], moving from $[current] to $[new]. Same work, same delivery, just bringing the rate up to match where my pricing for new clients has been for a while.
If anything about that needs a conversation, happy to jump on a call.
Thanks for the partnership.
[Name]
Short price increase email template
For informal client relationships or small increases where a full letter would feel disproportionate. Best for month-to-month engagements with no formal contract and increases under 10 percent.
Subject: Quick rate update
Hi [Client name],
Wanted to give you a heads-up that starting [date], my rate is moving from $[current] to $[new]. Reach out if you have questions.
Thanks, [Name]
How to handle pushback after a price increase
Most pushback is reflexive, not real. The first response is to listen, restate the value, and offer the reduced-scope alternative if it fits the client. The second response is to decide whether the client is worth negotiating with or whether the answer is no.
What to say when a client threatens to leave
Three scripts to have ready before the conversation starts.
First response:
"I hear you. The new rate reflects what the work now requires. If the rate doesn't fit, the most useful conversation we can have is about what we adjust, because I want to keep working with you and I want to do it sustainably."
Second response, if they push again:
"The rate is firm, but the scope isn't. What would feel right to you?"
Closing response, if they decide to leave:
"I understand. I'll get the file handoff to you this week, and I'm happy to recommend two firms that might fit the budget you're working with."
The first script offers a real alternative. The second puts the next move on the client. The third ends the relationship cleanly.
When to negotiate and when to hold the line
The decision rule, applied to pushback:
- Negotiate when: the client is an A client with long tenure and strong delivery history; their pushback is about scope, not price; or they're asking for a transition period rather than a permanent rate hold.
- Hold the line when: the client is a B client; the engagement has had recurring payment issues; they're asking for the old rate with no openness to scope adjustment; or the relationship is already extracting more firm time than the original rate justified.
A firm that negotiates with everyone has no rates, only opening offers.
How to follow up after sending the letter
Send the letter. Wait seven days. If the client hasn't responded, send a one-line follow-up: "Wanted to make sure my note from last week landed in your inbox." Most clients respond within a day or two. The follow-up is also when the engagement letter update happens. Once the client confirms, the agreement update goes out.
Mistakes to avoid when announcing a price increase
The four most expensive mistakes are being too apologetic, giving too little notice, sending a generic letter, and failing to update the engagement letter formally after acceptance. The first three damage the relationship. The fourth quietly costs the firm money.
Being too apologetic about the change
Apology language signals doubt about the rate. State the change. Don't ask for permission to make it.
Giving too little notice
Less than 30 days reads as inconsiderate. The client doesn't have time to plan around the change, ask questions, or process the news before it hits the next invoice.
Sending a generic, impersonal message
A mass-blasted letter signals that the firm sees the client as one of many. Address the client by name. Reference the specific service line. The personalization is the difference between a letter the client treats as a notification and one the client treats as the start of a conversation.
Failing to update your agreement formally
This is the one most firms get wrong, and it's the one that quietly costs the most. The letter goes out. The client says yes. Two weeks later, the next invoice is due, and somebody has to remember to manually adjust the recurring charge to match the new rate. Often it doesn't happen, or it happens late, and the firm spends a quarter billing at the old rate while telling itself the increase took effect on time.
The fix is making the engagement letter and the billing system the same record. When the engagement is amended, the next invoice automatically charges the updated amount. This is the operational gap Anchor's amendable agreements are built to close. The price increase becomes operationally real the moment the client accepts the amendment.
How to automate future price increases
The price increase letter is necessary because most firms wrote engagement letters that don't anticipate price changes. Fix the engagement letter and the conversation gets easier every year.
Future price increases get easier when the increase is built into the original engagement letter. A clause that ties pricing to an annual percentage adjustment, typically 3 to 5 percent (sometimes pegged to CPI), sets the expectation at the start of the relationship. Combined with a billing system that reads the engagement letter directly, the annual increase becomes a background process instead of an annual letter.
Building annual increases into your client agreements
Three clause options to choose between, depending on how the firm thinks about pricing:
- CPI-pegged: "Beginning twelve months after the effective date of this agreement, fees will adjust annually on the agreement anniversary by the percentage change in the U.S. Consumer Price Index for the prior twelve months."
- Fixed percentage: "Fees will increase by 4 percent annually on the agreement anniversary date."
- Stepped (for legacy catch-up scenarios): "Fees will increase by 8 percent on the next anniversary, then by 4 percent annually thereafter."
CPI-pegged keeps pace with inflation but can undershoot when a firm has materially expanded service depth. With US annual CPI inflation at 3.3 percent as of March 2026 per the Bureau of Labor Statistics, a 3 percent fixed clause currently runs below inflation.
Fixed percentage is more common in practice. It's predictable for the client and easy to forecast for the firm. The AICPA's Journal of Accountancy notes that engagement letter clauses of this kind "usually provide for no special notification". The increase happens because the engagement says it does.
How automated billing handles the implementation
The clause sets the rate change. The billing system has to apply it.
In a traditional setup, the engagement letter lives in a Word doc or PDF, the billing system lives in a separate tool, and somebody has to remember to update the billing template on the agreement anniversary. The manual step is where the increase quietly fails to take effect.
In Anchor, the engagement letter and the billing system are the same record. When a firm sets up an agreement with a built-in annual increase clause, the system applies the increase automatically on the anniversary, and the next invoice charges the new amount. No second action required.
Removing the awkward conversation entirely
The price increase letter handles the communication. The engagement letter clause handles the agreement. The billing system that reads the clause handles the implementation. The awkward part is the conversation. Everything after it should run automatically.
A firm that builds annual increases into its engagement letters only ever writes a price increase letter for one of two reasons: a one-time catch-up correction for a legacy client, or a material change in scope. The annual rate update happens in the background. This is what a calm firm looks like operationally.
Frequently asked questions
Should I send a price increase letter by email or in a meeting?
For most clients, email is appropriate and efficient. The letter is documentation, and email creates a clear paper trail. For high-value or long-tenure clients, lead with a brief 15-minute conversation and follow up with the letter as the formal record. The conversation isn't asking for permission; it's giving the client the news in a way that respects the relationship.
How often should I raise my prices?
Annually is the standard. A small predictable increase every year is easier for clients to absorb than a large increase every three or four years. For broader pricing strategy beyond annual increases, see Anchor's price increase notice guide.
What if a client refuses to accept the price increase?
Use the scripts from the pushback section above. If the client won't accept the new rate and won't accept a scope adjustment, the conversation has reached its end. Letting a client go who won't pay current rates is operationally healthier than keeping them at a rate that no longer covers the work.
Can I raise prices mid-contract?
Check the engagement letter first. If it has a clause for periodic price changes, follow the clause. If it doesn't, give appropriate notice (60 days at minimum) and use a formal amendment process. In Anchor, mid-engagement amendments work as a single update: change the agreement, and the next invoice reflects the new rate.
What is a reasonable percentage for a price increase?
For most firms, 3 to 8 percent annually is standard. The lower end keeps pace with CPI; the upper end captures incremental value when the firm has expanded its service depth. For legacy clients on rates significantly below the current floor, 10 to 20 percent is reasonable as a one-time catch-up correction. Some practitioners go further: Ed Mendlowitz, CPA, writing in Accounting Today, has documented catch-up increases of 30 to 40 percent for clients whose work materially expanded over years without a corresponding rate adjustment.
The signal that a larger increase is warranted: the work the firm is doing now bears little resemblance to the work the engagement was originally priced for.
The price increase letter is a communication problem with a known solution. The harder problem is what comes next: making sure the engagement letter reflects the new rate, the billing system charges it, and the firm doesn't have to write this letter again next year.
Get that part right and the conversation gets easier every year you do it. Eventually it stops being a conversation.
