25%?! Sweet baby Jesus, I'm afraid to look... Felt like it was ridiculously expensive the first time around, as it was.
The fees for FLR(M) and ILR are currently approved to rise no higher than £3,250 per visa by 2020. I imagine they will get even higher after that.
When I joined the forum in January 2007, the fees were:
2-year spousal visa = £260
ILR (by post) after 2 years = £335
ILR (in person) after 2 years = £500
UK Citizenship after living in the UK 3 years = £200
Total from spousal visa to citizenship = £795 (postal ILR) or £960 (in-person ILR)
In April 2007, they increased to:
2-year spousal visa = £500
ILR (by post) after 2 years = £750
ILR (in-person) after 2 years = £950
UK Citizenship after living in the UK 3 years = £575
Total from spousal visa to citizenship = £1,825 (postal ILR) or £2,025 (in-person ILR)
Right now, in 2017, the fees are:
2.5-year Spousal visa + IHS = £2,064
2.5-year Spousal visa + IHS with priority = £2,615
2-5 year FLR(M) + IHS (by post) = £1,493
2-5 year FLR(M) + IHS (in person) = £2,083
ILR (by post) = £2,297
ILR (in-person) = £2,887
UK Citizenship = £1,282
Total from spousal visa to citizenship = £7,136 (postal application, no priority) or £8,867 (with priority/in person)