Freeze the lifestyle for 90 days. Do not change rent, car, or subscriptions. The new net is not “normal” until the stack in this file is automatic. Open a HYSA named raise parking the week HR confirms the number — a named sleeve is how the extra dollars do not become DoorDash. A hop that already won on the raise vs hop calculator is a different file: job-offer comparison. This one is the raise you already have.
Measure the net raise, not the offer letter. Run the paycheck calculator twice: old gross, new gross, same 401(k) % and HSA. Subtract. Traditional 401(k) cuts federal (and usually state) but not FICA. 2026 Social Security wage base is $184,500 (SSA OACT); employee OASDI 6.2% + HI 1.45% = 7.65% on the extra gross until that cap. Rev. Proc. 2025-32: 22% ordinary starts at taxable $50,400 single / $100,800 MFJ; standard deduction $16,100 / $32,200. If you cannot name the extra net per check, you are about to automate a guess.
Write the 401(k) percent as a number. Capture any newly available match first. Formula is in the SPD. If you were at 4% on a 100%-of-first-6% match, the raise is how you finally take the other 2% — on the new base. 2026 elective deferral $24,500, age-50 catch-up $8,000, ages 60–63 $11,250 (Notice 2025-67). Match sits in the $72,000 §415(c) cap, not the $24,500. No true-up → spread the percent across remaining paychecks; front-loading the cap in October can zero November–December match. 2026 is the first year age-50+ catch-up at this employer must be Roth if 2025 Social Security wages here were over $150,000 — a raise that will cross that line this year is a 2027 catch-up coding problem, not this week’s. Primer: never skip the match.
A 24% card still beats unmatched index-fund contributions. After the match is captured, leftover net raise is extra avalanche, not a Roth IRA slogan. Do not pause the match to “feel aggressive” on the card — the match is 50–100% the week it posts. Minimums stay autopaid so the HYSA cannot bounce. If DTI is why a refinance died, that is the DTI tool, not this file.
W-4 Step 4(c) is a remaining-checks lever, not a personality trait. Plug the new gross into the paycheck calculator. One job, still in 22%, last year you broke even: leave 4(c) at $0. Last year you owed, two W-2s, or a 1099 side hustle: size 4(c) off the gap ÷ remaining pay periods — Pub. 15-T (2026) adds that dollar to each remaining check, not to 26. A mid-year raise that payroll annualizes at the new rate can slightly over-withhold the rest of the year; do not “fix” that with a smaller 4(c) and a surprise. Two similar jobs: Step 2 on the higher check only. Bonus at 22% supplemental is a one-month bump or a 1040-ES, not a rebuilt form. The sequence is set the W-4 so April is boring. Recheck when you marry, add a job, or a kid — not merely because the number got bigger.
Payday+1 ACH the entire extra net into raise-parking. Payroll 401(k) already left. What hits checking is the net from step 2 minus any new 4(c). Draft that dollar the morning after payday, not the afternoon of. Same-day ACH on payday is how people overdraft and then “pause the raise plan.” Kill date: day 90, or the day the emergency-fund target in step 7 is full — write the date on the transfer. Tuesday money stays HYSA. It is not an I-bond (12-month lock) and it is not a brokerage.
Top the emergency fund from that sleeve, sized on the new life. 1–3 months of new essentials (the raised-base rent/food/insurance), not the old. Payday+1 until the number, then kill the transfer. Classroom default is three months once the 24% card is gone; one month is allowed if the card is on fire. See the emergency-fund guide and the runway calculator. If the sleeve would be a credit card, you wanted this step, not a taxable brokerage.
Then IRA / brokerage, drafted the morning after the HYSA. 2026 IRA / Roth IRA $7,500, +$1,100 at 50 (Notice 2025-67). Direct Roth MAGI phase-out: single $153,000–$168,000; MFJ $242,000–$252,000. A raise that puts MAGI in the phase-out is a backdoor week, not a leftover checking pile labeled “Roth later” — backdoor primer. Calendar: payday, HYSA the next morning until the sleeve is full, IRA/brokerage the morning after that. The standing payday file is paycheck to investing; this step is only the extra dollars from the raise.
HSA only if you already have a legal HDHP stack. Do not skip the 401(k) match to fill the HSA. Payroll HSA usually skips FICA; a 1040 contribution does not unwind FICA already withheld. 2026 HSA: $4,400 self / $8,750 family, +$1,000 at 55 (Rev. Proc. 2025-19). 2027: $4,500 / $9,000. A general health FSA next to the HDHP is how HSA contributions become excess. If open enrollment is in front of you, that is elect the HSA without lighting the FSA, not a raise-week election.
Day 90: one lifestyle decision, not a shopping spree. After match + sleeve + IRA draft are automatic, you may keep 20–30% of the net raise as visible lifestyle if you want. The rest stays in the transfers. Write the dollar (not “a little nicer groceries”). If the 24% card is still open, 0% lifestyle until it is not. A car payment that eats the whole net raise is how this file fails in week two.
Screenshot the wires so future-you cannot gaslight the file. HR: new 401(k) percent, Roth vs traditional boxes actually checked, W-4 confirmation and the pay-cycle it hits (often the next one, not this stub). Bank: raise-parking ACH, kill date. Brokerage / IRA: payday+2 draft. Two numbers on the first of the month: the savings percent happened, net worth moved (401(k) + HSA + IRA + HYSA, not checking). If the percent missed, HR never took the election or the ACH bounced — fix the wire, do not “try harder.”
Hard-stop list: spending the first raised stub on a celebration that is really a new baseline, skipping the match to max a Roth IRA, a same-day IRA ACH on payday, treating a giant refund as the savings plan, filing a new W-4 just because the number got bigger (or checking Step 2 twice), front-loading the $24,500 with no true-up, putting raise-parking in I-bonds or a brokerage, electing a general FSA next to an HDHP, a car / apartment / subscription that consumes the net raise, and waiting until December 31 to open the IRA. If the leftover after match + 4(c) + minimums is $0, you wanted the stub and the card, not a target-date. If the leftover exists and is still in checking on the 15th, the calendar is the bug.
One-page decision
Freeze 90 days. Measure net with the paycheck calculator. Write the 401(k) percent so the match is actually taken on the new base. 24% card next. Step 4(c) only if remaining checks would leave a gap — Pub. 15-T is per period, not × 26. Entire extra net into a named HYSA, payday+1, until the new 1–3 month sleeve is full. Then IRA/brokerage payday+2. Day 90: at most 20–30% of the net raise as lifestyle; the rest stays automatic. Nobody is required to max the $24,500 before the sleeve exists.
Worked example (educational, not advice): single, $80,000 → $88,000 (10%), 100% match on the first 6%, currently deferring 4%, 22% federal (Rev. Proc. 2025-32; taxable on $80k − $16,100 is already in 22%), example state 5%, under the $184,500 SS wage base. Extra employee 401(k) to 6% of the new base: $2,080/yr ($80/biweekly). Extra employer match: $2,080. Extra FICA 7.65% on $8,000: $612. Extra federal 22% on $5,920: $1,302. Extra state 5%: $296. Extra net: $3,710/yr ≈ $143/biweekly. Day-90 lifestyle at 25% of that net: ~$77/month; the other ~$232/month stays in raise-parking then IRA. Step 4(c) stays $0 if last year broke even and this is one job. Type your own state % and 401(k) %; $143 is not a quote.