Some of your calculated figures seem about right, but others look a bit high to me. At first, I thought your take-home salary calculation seemed too low, but after researching it a bit myself, I realise that it's probably about right when you consider the pension contributions - you could always consider trying to contribute less than £200 a month to start with if you're really struggling.
I'm not sure how likely it is that you will be able to put away £400 in savings each month - that's quite a lot to save - my parents can only save about that much per year on a combined income of about £44,000.
Also, the £400 per month on food seems high too - more like the cost of feeding a family of five. I'm not sure about costs of feeding a baby, but the national average that people live on food-wise is £15-£20 per week per adult - that's only £120-£160 per month to feed you and your husband, compared to £400 for the 3 of you. That's based on eating in rather than out - eating out is expensive here (about double what a dinner out costs in the US) and is something my family can only afford to do on birthdays and special occasions. Going with £20 per week per person, you could reduce your yearly costs by over £2,000.
To be honest, things like baby college funds are not that important in the UK because university education here costs a great deal less than in the US (at least looking at US out of state tuitions). Although the fees have risen recently to £3,000 per year, the government offers tuition loans as well as normal student loans so parents don't have to pay as much towards tuition if they can't afford it. Before the higher fees came in, my parents paid just £7,500 for 8 years of college (4 years for me and 4 years for my brother) - compared to a similar amount per year in the US.
A quick comparison: cost of 1 year of tuition at Harvard = cost of 5 years of tuiton at Oxford or Cambridge
Are my numbers way off compared to the real cost of living outside of London? I have heard that the north is less expensive, but is that just the cost of apartments or are utilities, groceries etc. also less expensive? His commute would only be 20 or 30 minutes from Reading and it would keep us from having to buy a car--if we lived up north would transportation be an issue?
Apart from London, the next 3 biggest urban areas in England are in the north - 2.2 million people in the West Midlands conurbation, 2.2 million in Greater Manchester and 1.5 million in West Yorkshire. In comparison, Reading only has a population of about 370,000 people. If you lived in or near these urban areas, you're likely to find good public transport which may even be cheaper than in the south.
I'm not sure how accurate I'm being here (still a student and scrounging off my parents at the moment), but I hope some of this helps
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