How to Claude — for Accountants and Bookkeepers

1 Claude isn't one tool. It's six.

💬Chat Brainstorm, draft emails, work through decisions out loud.
📁Projects One per business area. Persistent context. No re-explaining.
</>Code Clean spreadsheets, build simple tools, automate repetitive work.
👥Cowork Share context with your team or contractors.
★Skills Custom instructions and repeatable workflows.
🔗Connectors Connect Gmail, Drive, Calendar — bring your data in.

2 Pick the right model

OPUS 4.7 → Strategy, hard decisions, important client work

SONNET 4.6 → First drafts, daily emails, routine writing

HAIKU 4.5 → Quick rewrites, bulk variations, fast lookups

🧠 Sonnet 4.6 also supports Extended Thinking for deeper reasoning at lower cost.

Claude

for Accountants

Your unfair advantage for surviving prep season with your sanity intact.

Built by Crest Authority

3 Extended Thinking

Model selector▾

Opus 4.7👑

Extended Thinking on

🧠 Forces Claude to reason before answering. Use it for big decisions: pricing, hiring, contracts, strategy.

4 The small business setup

Make a Project for each part of your business. Drop in your docs once. Stop re-briefing Claude every chat.

OPERATIONS

SOPs, vendors, processes, recurring decisions

CUSTOMERS

Emails, follow-ups, reviews, support replies

GROWTH

Offers, content, ads, outreach, pricing

5 The prompt template

I'm an accountant.
I want [task] so that
[outcome].
Here's the context: [...].
Ask me anything unclear
before you start.

6 Eight use cases with example prompts

📥 Doc chasing "Draft a third reminder to the client who hasn't sent their 1099s. Polite, firm, gives a deadline."

📋 Engagement letters "Turn my prospect call notes into a draft engagement letter. Match the tone of the example I'll paste."

💬 Plain English "Rewrite this CPA-speak on estimated taxes for a client who's never owned a business."

📣 Client comms "Write the firm's quarterly tax-update email. Three things to know, one thing to act on."

📊 Numbers review "Look at this client's P&L for the last 12 months. What's worth flagging in our next meeting?"

🤝 Hiring "Write a job post for a senior bookkeeper and 10 questions to screen for accuracy and ownership."

📅 Prep season "Draft three deadline reminders for clients who always file late. Escalating, not threatening."

🚪 Firing clients "Help me draft a kind letter ending the engagement with a client who's chronically late and short with my staff."

Not sure where to start? Take the 3-minute Crest Authority assessment to see exactly where you're leaking time or revenue today → crestauthority.com

7 Five power moves

Feed it your clients' actual questions

Paste a year of client emails. Ask Claude to find the patterns. Those become your FAQ, your onboarding doc, and your nurture content.

📖

Get yourself out of the workflow

"Here's how I close a monthly bookkeeping engagement. Write the SOP so my new hire could run it in their second week."

Pressure-test the proposal

"Roleplay a small business owner reading my engagement letter. What questions will they have? What sounds expensive?"

📊

Find the bottleneck

Paste your last 10 client onboarding timelines. "Where are we losing days? What's the real pattern?"

🏛

Prep for the price-increase conversation

"Help me prep for telling my five long-term clients I'm raising rates 15%. Anticipate pushback. Give me three frames."

8 What Claude is BEST at

✓Writing and rewriting at speed — emails, posts, replies, listings
✓Documenting how you do things so you can hand it off
✓Synthesizing reviews, calls, and feedback into clear patterns
✓Cleaning up and analyzing spreadsheets you already have
✓Pressure-testing offers, prices, and decisions before you commit
✓Turning rough thoughts into something a customer can read

9 What Claude is NOT best at

✕Real-time data it hasn't been given (current prices, today's stock)
✕Talking to your customers for you with no oversight
✕Final calls on hiring, firing, or big money decisions
✕Touching tools or accounts you haven't connected to it
✕Knowing what's true about your business unless you tell it
✕Replacing the judgment you've earned running the place

💡

10 The Accountants and Bookkeepers mindset shift

Claude isn't replacing your judgment — that's the whole reason clients hire you. It's here to take the document chasing, the explainer emails, and the third-time-asking nudges off your plate so you can spend that time on actual advisory work. Faster client onboarding, tighter prep season, fewer fires on April 14th — that's how firms turn AI into more revenue per hour and a real life outside of tax season. Find where you're leaking time or revenue today: crestauthority.com

🧠

Connectors Plug Claude into Gmail, Drive, Calendar, Slack, and dozens of other tools you already use. Find them in Settings → Connectors → Browse.