Guide III · 6 min read
Budgets fail because they count things you don't care about. A conscious spending plan does the opposite — it decides the four things that matter in advance, then lets you stop thinking about it.
Ramit Sethi's plan splits take-home pay into four pots. The percentages are guides, not laws, and they need adjusting for the UK — rent and mortgages chew through a much bigger share of income here than in the US.
UK starting percentages of joint take-home
Fixed costs is rent or mortgage, bills, food, transport, childcare, insurance. Investments is pensions (including employer match) and Stocks & Shares ISAs. Savings goals is anything with a date attached — a holiday, a deposit, the next car. Guilt-free spending is the rest: restaurants, clothes, the hobby, the takeaway. You don't track it. You don't apologise for it. It's the bucket where money is allowed to be fun.
Two earners, combined take-home of £5,800/month after tax, pension and student loan. A flat with a mortgage.
£5,800/month, two people
That £1,565 sounds like a lot until you realise it's the entire budget for restaurants, clothes, gifts, hobbies, takeaways, drinks, gigs, Christmas and the dog's vet bills. The point of a CSP isn't to feel rich — it's to know in advance that you can spend on the things you actually like without checking.
The setup that works for most couples — and lets you keep individual bank accounts if you want — is one joint account that handles the first three buckets, and individual accounts for the fourth.
If you don't already have one. Every fixed cost and every savings/investment transfer leaves from here.
Each partner sends a fixed amount from their salary to the joint account on payday. Split it proportionally to income, not 50/50, unless 50/50 actually fits.
Standing order out of the joint account on the 2nd of the month. ISA, savings goals, sinking funds. Automate it once. Stop thinking about it.
Whatever stays in your own account after your contribution to joint costs is yours. The other person doesn't audit it. This is the whole point.
The CSP handles flow — the money moving through every month. Net worth tracking handles stock — what you've built up. You need both. A household with a tight CSP and no net worth view will save diligently and never notice that the pension is the thing actually making them rich. A household with a net worth tracker and no CSP will watch the number go up and down without knowing why.
Run the CSP for the day-to-day. Check the household net worth once a month. That's the full system.
Both partners, after tax, pension, student loan. Use the actual number that hits the bank.
Three months of statements, divided by three. Be honest. This number is usually higher than people guess.
If fixed costs are already at 70%, that's information — investments and guilt-free both shrink. The plan still works, the numbers just look different.
Just one this month — the investment standing order. Do the others next month. Don't try to overhaul everything at once.
Pair this with the household net worth guide and the monthly check-in script. Three short reads, one full system.