The 9 calculators every CPA and bookkeeper keeps bookmarked.
The math you do every day, faster. Paycheck nets, sales-tax verification, owner-comp conversions — running in 30 seconds in front of the client instead of in a follow-up email at 9pm.
- • Quote net paycheck and overtime numbers in client meetings without opening QuickBooks Online or Gusto — the conversation that turns 'I'll get back to you' into a same-day answer.
- • Sanity-check sales tax filings and 1099 vs W-2 pay conversions for new clients in their first onboarding session.
- • Embed the paycheck or sales tax calculator on your firm's site so prospective clients searching 'how much will my take-home be' land on a working tool with your branding.
Paycheck Calculator
Federal, state, FICA, and standard deductions on hourly or salaried inputs. The single most-asked question in any new-client onboarding meeting and the highest-traffic calculator on most CPA firm websites.
9 more calculators every CPA should bookmark.
Click any calculator to use the full version — formulas, examples, FAQs, and the option to embed it on your own site.
Salary Calculator
Convert hourly, weekly, biweekly, monthly, annual gross. Anchors the conversation when a 1099 client wants to know what their W-2 equivalent looks like.
Open calculatorOvertime Calculator
Time-and-a-half math for FLSA-exempt and non-exempt classifications. Useful during quarterly check-ins on retail and restaurant clients.
Open calculatorSales Tax Calculator
State + local rate math for invoice review, sales-tax return reconciliation, and economic-nexus conversations with multi-state e-comm clients.
Open calculatorMargin Calculator
Gross margin math for client P&L reviews. Quick visualization of price-cost relationships during pricing-strategy conversations.
Open calculatorCompound Interest Calculator
Tax-advantaged-vs-taxable account framing for client retirement conversations. The visual that anchors a 401(k) max-out recommendation.
Open calculatorLoan Calculator
Equipment financing and SBA loan amortization for client working-capital and depreciation discussions.
Open calculatorMortgage Calculator
Refi break-even and pay-down vs invest math for client meetings that drift into personal finance — they always do.
Open calculatorNet Worth Calculator
Snapshot view for HNW client onboarding and for the 'where am I really' conversation that opens half of all year-end reviews.
Open calculatorRetirement Calculator
FV projection for self-employed retirement plan conversations — SEP-IRA, Solo 401(k), and defined-benefit modeling.
Open calculatorA new 1099 client onboards Wednesday afternoon. Here's the first 30 minutes.
Maya Singh's older sister, age 31, just left her W-2 marketing manager job ($98k base) for a 1099 fractional contract role at $115/hr, 25 hr/week guaranteed. She's never been self-employed and doesn't know what she's actually taking home, what her quarterly estimateds are, or how to think about the SEP-IRA her CPA mentioned in passing.
Open the salary calculator first, just to anchor the comparison. $115/hr × 25 hr/week × 52 weeks = $149,500 annualized. That's the gross. She thinks she got a raise. She did, on paper. The actual conversation is about what's left after she pays both halves of FICA, federal income tax with no employer withholding, state tax, and quarterly estimateds.
Pull up the paycheck calculator with her old W-2 inputs — $98k salary, single, no 401(k), state filing — and her old net was about $5,400/month. Then run a back-of-napkin self-employment scenario: $149,500 × roughly 35% set-aside (15.3% SE tax + ~20% blended federal + state). Net comes in around $97k, or $8,100/month. Higher net, but only because of the much higher gross — the marginal pay-bump for going 1099 disappeared into self-employment tax. She's reframing what 'raise' means in real time.
Last 10 minutes: the retirement calculator on a Solo 401(k) maxed at $23,500 employee deferral plus 25% of net SE earnings as employer contribution — call it $42,000/year shielded from current tax. The compound interest calculator projects that $42k/year at a 7% real return for 30 years to about $4M of retirement assets versus the $1.2M she'd have built through her old 401(k) at $98k salary. The decision to set up the Solo 401(k) makes itself. You schedule the next meeting to do it. Total time on the calculators: 18 minutes. Total value of the conversation: a multi-decade tax strategy decision the client now actually understands.
Put the practice toolkit on your site.
Free. No signup. No tracking pixel for your visitors. Works on WordPress, Squarespace, Webflow, or raw HTML. Customize colors and fonts to match your brand. Hosted and updated by us.
<iframe src="https://metricscalculator.com/embed/finance/paycheck-calculator" width="100%" height="500" style="border:none;border-radius:8px" title="Paycheck Calculator" loading="lazy"> </iframe>
Standard iframe — no scripts, no dependencies. Drop it in any HTML block.
Before you bookmark.
Frequently Asked Questions
Are the paycheck calculator's numbers accurate enough to share with clients?
For directional planning, yes — federal tables are 2026, FICA is current, state withholding is the standard formula for each state. For exact net pay including local taxes (NYC, Philadelphia), 401(k) deferrals, HSA, and post-tax deductions (garnishments, child support), use the client's payroll provider output as the source of truth. Use ours for the 'roughly what does the new salary look like' conversation.
Can I embed these calculators on my CPA firm website?
Yes. Every calculator has a one-click embed builder. Pick brand colors, fonts, and border style. Output is a single iframe — works on any firm-management website (PracticeProfit, Canopy, Karbon landing pages) or any standard CMS (WordPress, Squarespace). Free, no signup.
Will my state CPA society or AICPA compliance team object to embedding a third-party calculator?
Most don't, because the calculator runs no scripts on your parent site, sets no cookies on visitors, and contains no advertising or recommendations — it's pure math. The only required visible element is a small 'Powered by' attribution beneath the widget. If your firm has a strict third-party-content policy, get internal sign-off before publishing.
Do you have a Schedule C, depreciation, or full-tax-prep calculator?
No — those workflows belong in tax software (Drake, Lacerte, ProSeries, ProConnect, UltraTax) where the form generation and e-file integration live. Our calculators handle the conversational math you do in client meetings before the return gets prepared, not the return itself.
Can I customize the paycheck calculator to default to a specific state for my local clients?
Default state isn't currently customizable in the standard embed. For state-defaulted or label-customized versions (e.g., 'Florida Paycheck Calculator' on a Florida-based firm site), that's a custom build. Reach out via the contact page with your firm URL.
Which calculator drives the most prospect inquiries on a CPA firm site?
Paycheck, by a wide margin. 'Paycheck calculator [state]' is high-volume search and the visitors are typically either (a) considering a job change and need to know take-home, or (b) self-employed and trying to understand SE tax — both are warm prospects for a CPA. Salary and sales tax calculators are the second tier.
Other industries we've put together toolkits for.
For financial advisors
Investment and retirement tools for the wealth-management side of CPA referrals.
For small business owners
Margin, break-even, and pricing tools for the operations side of client businesses.
For mortgage brokers
Loan and home-financing tools that overlap with year-end tax conversations.