Will you be best investment for 20000 pounds tax winner or loser this year? Should I save into a Lifetime Isa and would my Help-to-Buy Isa be closed if I do? Workers’ pension deductions triple to 2.

BIG SHOT OF THE WEEK: Has Mark Zuckerberg’s Facebook morphed into a monster beyond his control? The Devon home that looks like a luxury treehouse! Where are you most likely to get a bus lane fine? The rise of DIY investing has delivered a revolution in the way investors buy shares, investment trusts and funds – offering them huge savings and a big boost to their returns through online brokers.

Not so long ago, investing typically required a stockbroker or financial adviser and the willingness to hand over a big chunk of commission. Now armed with a computer – or in some cases even just a smartphone – investors can use a DIY investing platform or online broker and the wealth of research at their fingertips to hopefully build their fortune. But picking the right DIY platform is crucial and the array of different options has left many investors scratching their heads. We explain how to decide on a DIY investment platform to invest in the full range of options: from shares, funds and investment trusts, to ETFs and direct retail corporate bonds. Check the table for the brief details and read our full round-up of each platform’s features and who they could be good for below. 50 per quarter for shares, trusts, ETFs. Platform charge waived on shares if one trade in that month.

Why does an Isa or investing platform matter? The right Isa wrapper or investing account has the power to boost your investments, helping you to build a portfolio and limiting how your hard-won returns are eaten into by fees. DIY investing platforms act as a place to buy, sell and hold all your investments and a tax-efficient wrapper around them if you choose to invest in an Isa. Isa makes sense, as it should protect your hopefully growing investments from as much tax as possible.

The good news is that costs are consistently being trimmed and being made more transparent. Something that complicates picking a platform is that DIY investors can hold a variety of assets in their Isa – not just one fund or a handful of them. Charges vary for those Isa investors choosing to hold investment trusts, ETFs, shares and directly traded corporate bonds, alongside traditional managed funds in the form of OEICs and unit trusts. We would advise considering the points below first. FLAT FEE VS PERCENTAGE CHARGE: WHICH SHOULD YOU CHOOSE?