What if SIP left the account on the 1st, before Swiggy?

Reverse budgeting is not a TED talk. In Tumakuru it is a NACH that fires before the food apps even wake up.

What if SIP left the account on the 1st, before Swiggy?

Skip to the calculator below this article

The leftover method is how leftover becomes zero

Payday extra happiness in Tumakuru lasted until Sunday. The SIP that waited for Sunday never met a Monday.

Pay-yourself-first: 20% of ₹80,000 = ₹16,000 SIP+oats the same morning. The month must fit in ₹64,000. That constraint is the product.

That is the actual question. Not the slogan on the brochure.

In Tumakuru this debate still shows up at dinners as if character, not cash flow, is the variable.

Numbers first. Feelings after the numbers get a chair.

A 10% auto SIP is ₹8,000. Better than zero. 20% is how 10-year charts stop looking like a joke.

Discomfort here is a signal. A 15% slider is not.

Nobody hands out a medal for pretending your Excel is braver than your salary.

₹80,000 with 20% claimed first

Pick the debit date, then design the month

On salary day minus one, the mandate is already sitting. Not a UPI you heroically send.

Use this SIP calculator, pick an amount that still leaves rent and term alive, then do not reopen the app until next payday except to kill a want.

Open a calculator and type the ugly version first—Manual SIP “when I remember.” In 11 months you remembered 4. That is not reverse budgeting. That is folklore..

If the input only works in a good year, it is a wish, not a plan.

SEBI investor education keeps saying match product to horizon. Your rent is not a small-cap horizon.

AMFI investor corner will not clap. It will remind you equity can fall after you automated it. Keep a thin FD buffer so you do not redeem the SIP in a panic week.

If you cannot explain the result to a slightly impatient parent, you do not understand it yet.

“I’ll SIP after expenses” is a disappearance spell

Automating 40% then using a 36% card for groceries. You did not pay yourself. You paid the bank.

Six SIPs of ₹1,000 you will not track. One SIP you will.

Waiting for a “round” ₹20,000 SIP. Markets do not grade roundness.

The internet will sell you a one-line rule. One-line rules do not pay EMIs.

Your cousin’s 2017 small-cap luck is not a policy.

Re-run the numbers when salary, rate, or the goal date moves. That is the whole maintenance.

In Tumakuru the skipped review later becomes a complaint about luck. It was maintenance.

Annual principal you actually keep

Automate 15–25%, then survive on the rest

Buffer ≥2 months: 20% auto is fair on a stable job.

Buffer thin: 10–12% auto + oats until 3 months exist.

Variable pay: auto on the fixed in-hand; bonus is a separate lumpsum/STP.

If a card is revolving, this page is homework, not a green flag to invest more.

Investing while revolving a 36% card is theatre.

If cash is tight this quarter, shrink the plan. Do not vanish from it.

A smaller SIP or a shorter loan goal beats a heroic screenshot you cancel in six weeks.

₹80,000 → ₹16,000 first, ₹64,000 to live

₹16,000 × 12 = ₹1.92 lakh of first-claim principal a year. Behaviour carried that, not a guru.

₹16,000 for 15 years at 12% is a grown folio. ₹4,000 leftover SIP is incense.

Miss the auto one month because of a wedding: restart next cycle. Do not “catch up” from the card.

None of this is a guaranteed NAV or a sanctioned loan. It is a map.

If the plan only works at 18% returns or a 6% home loan forever, it is not a plan.

Good years are a bonus. Plans that need good years are costumes.

Keep a 10% haircut for tax, fees, or the extra month the builder delays.

Reverse-budget fitness

If automation feels rude, it is working

First claim or leftover. Those are the only two religions.

Leftover is how Swiggy became your fund manager.

Boring consistency beats a dramatic restart every January.

Calendar reminder beats a quote about discipline.

When someone in Tumakuru asks, share the widget with your numbers stripped. Let them type theirs.

And please date your spreadsheet. Future you will not remember which fantasy version this was.

Estimates only. Lender, CA, or advisor before you move real money.

Quick answers

What percent should I pay myself first?

10–12% if the emergency pile is thin; 15–20% of take-home if EMIs and oats are sane. Automate it. AMFI still wants you to know it can fall.

SIP date: 1st or after rent?

After rent only if rent bounces otherwise. Else 1st or salary+1. The point is before discretionary UPI.

Is a RD safer for pay-yourself-first?

For <3 year goals, RD/FD. For 10+ years, SIP. Different buckets. RBI education is boring on this for a reason.

Change the numbers in the calculator above and see the result on this page.

Estimates only—not personalised financial, tax, or investment advice. Markets, loan rates, and tax rules change. Confirm numbers with your lender, CA, or advisor before acting.