# Reverse paycheck calculator (2026)

A reverse paycheck calculator starts from cash you want to keep and asks what gross produces it. Type a target take-home in the widget — default $5,000 a month — and it binary-searches the same 2026 US engine used on every Takehome Cash page so we do not invent reverse nets. California, single, no 401(k).

The widget defaults to $5,000 a month take-home. That is $60,000 of annual net. We search annual gross until calculateTakeHome matches that net for a California single filer with no 401(k). Ordinary $80,000 and $100,000 gross→net rows sit in the sample table so you can sanity-check against the site’s California fixture.

Texas needs a lower gross for the same net because there is no state income tax on wages. UK PAYE calculators, Canada, and other-country tools are not this page — federal brackets follow IRS Revenue Procedure 2025-32 and Social Security uses the SSA $184,500 wage base.

Change state or filing status in the widget; required salary updates as you type. Estimates reviewed October 2, 2026.

## Sample estimates

### CA single, $5,000/month net needs about $78,561.36 gross

- Gross: $78,561.36
- Federal income tax: $8,453.50
- Social Security: $4,870.80
- Medicare: $1,139.14
- State income tax: $3,076.62
- Net / take-home: $59,999.99 (effective tax 23.6%)
- Per paycheck net: $59,999.99 (1 periods)

### $80k CA single (gross→net)

- Gross: $80,000.00
- Federal income tax: $8,770.00
- Social Security: $4,960.00
- Medicare: $1,160.00
- State income tax: $3,210.42
- Net / take-home: $60,859.58 (effective tax 23.9%)
- Per paycheck net: $60,859.58 (1 periods)

### $100k CA single (gross→net)

- Gross: $100,000.00
- Federal income tax: $13,170.00
- Social Security: $6,200.00
- Medicare: $1,450.00
- State income tax: $5,070.42
- Net / take-home: $72,809.58 (effective tax 27.2%)
- Per paycheck net: $72,809.58 (1 periods)

Label: engine estimates, not pay stubs.

## FAQ

### How does reverse paycheck math work here?

A small helper binary-searches annual gross until the real calculateTakeHome net matches the target annual or monthly net. There is no hardcoded reverse table.

### What is preloaded?

California, single, tax year 2026, targeting $5,000 a month take-home. Type a different monthly or annual net in the widget.

### Can I reverse a UK or other-country paycheck?

No. This is a US W-2 2026 engine only. Other-country calculators are not this page.

## Related

- [Salary for $5k/month take-home](https://takehomecash.com/how-much-salary-for-5000-a-month-take-home/index.md)
- [Net vs gross pay](https://takehomecash.com/net-vs-gross-pay/index.md)
- [Take-home pay calculator 2026](https://takehomecash.com/take-home-pay-calculator-2026/index.md)