A Simple Retirement Calculator – UK version
Back on June 14th, I shared a reader’s neat spreadsheet called the Canadian Retirement Calculator. It was fun to see young Mustachians sharing with one another, and that event has triggered more sharing.
Another reader has completely rewritten the spreadsheet to reflect UK tax and savings laws. I realize that UK readers are only a few percent of the readership due to my crude and bossy American bias, but that still adds up to quite a few people so I thought it would still be very worthwhile to share it.
The idea of this series of spreadsheets is that you fill in the yellow boxes, and the spreadsheet instantly provide a great amount of detail about how things will look during the upcoming decades of your life – year by year. You can then tweak assumptions about your spending and earning and see what you really need to do, to get yourself to a nice juicy early retirement
Although I am sharing these spreadsheets in Lazy Vacation Man mode without taking the time to dig into the formulas much myself, I did have a couple of observations about this new British one:
1: wow, things look much more serious and respectable/official with pound signs instead of dollar signs, don’t they?
2: if you tweak the “bank” column so that the initial net worth starts out the same on both spreadsheets, it is interesting that the net worth grows considerably slower in the UK, presumably because of the higher tax rates. After ten years, it’s a $100k difference. Fairly significant, although you may get it back in the UK through public services in other ways. Better health care? Lower university tuitions? More public pension benefits? Lower carbon emissions per person? I’m not sure of the answer, or if Canada is just a better deal for living.
Here you go, in .xls format:
Simple-Retirement-Calculator-UK
Many thanks to Chrissy, our UK spreadsheet ninja!
Now we just need a hardworking US resident to tweak it for our own country. You will be helping thousands of fellow Americans plan their escape from the rat race and you can even take public glory for it if you like. Who is up for the challenge!?!
Article: How To Start a Blog
Where to next? Check out a Random Article
|
Stay in Touch: Subscribe to posts by e-mail, RSS Feed, or follow MMM on Twitter and Facebook.
Join the Conversation: Learn from Like-Minded Mustachians in The Money Mustache Community |



Mr. Money Mustache is a family man living in the United States who retired from work, relatively wealthy, at about age 30. After several years of retirement, he noticed that his still-working peers were envious of his lifestyle. They were making more money than he ever had, yet they were somehow still broke. So he decided to write this blog to educate the world on how it is done.
Wow, thank you! I only just got round to looking at the Canadian one yesterday, and played around with it a bit to make it work for the UK. I decided it was too much work for right now, even though I am an accountant… and then you publish this today! Kind of glad I didn’t spend a long time on it ;)
Thanks again, and to Chrissy for doing the work!
It was a pleasure, MMM & Liz.
I mostly kept to HS’s model, as I found it simple, yet effective. It’s worth noting a couple of updates in addition to UK tax-rates and account types:
- Age (in column B) should be updated, as the spreadsheet won’t factor in withdrawals from pension prior to age55
- The sheet is set up to assume you always max a cash ISA, then a stocks & shares ISA (ie £5,340 to each under current guidelines). It also assumes you would withdrawal from a cash ISA before a S&S ISA.
If/when I move back to the US and a US version isn’t set up by then, I’ll happily re-work the model. However, I think trying to re-learn US tax rates/rules now would make my head hurt. It’s so much more complex with added deductions, etc., I can’t be bothered to deal with it at the moment.
Thankyou MMM and Chrissy for this, I am a UK reader and love the blog! I like your direct approach, it has really inspired me. Also thanks to Mrs MM for her posts; I have now given up dyeing my hair and it looks better than before!
I did! I looked up US marginal tax rates, and IRA exemptions, and Social Security, and it took hours figuring out the calculation errors I created, and I finally got it to work.
And then, a couple days later, my computer had a CPU error and refused to turn on, so the spreadsheet is sitting on that harddirve awaiting a time when I decide its worth the money to have it repaired (probably when my back-up computer dies)
Can’t you just rescue the drive from the busted computer and install it as a second drive in your working one? Or throw it into an external USB enclosure and plug it in that way? Both good ways to save data from old computers without requiring the whole computer to be repaired.
A hat tip to you my good sir from across the pond in the UK.
I’ll be tinkering away with this spreadsheet for sure.
Your blog is an inspirational and highly enjoyable read. Thanks for sharing it with us!
I would guess the heavier tax burden you are seeing in the British version of the speadsheet is because a British pound is worth more than 1.5 Canadian dollars so someone earning to same number of pounds as dollars will fall into a higher tax bracket.
Checking on tax free days in Canada and Britain I see that the overall amount of tax in both countries is about same.
Thank you so much! This will be very helpful, I read about the Canadian one and wished for this.