How should I write the banner for the corporate income tax final settlement work conference?

"For hanging outside, two corresponding ones"? What you want is a promotional slogan, right? How many words do you want roughly? Are the following okay?

Gather together to enjoy harmony

Serve scientific development and build harmonious taxation

Taxation promotes development and improves people's livelihood

Gather wealth for the country, enforce the law for the people

Tax collection, mutual trust, harmony and progress

Water is the source of life and tax is the foundation of construction

Tax collection and management are based on law Paying taxes in accordance with the law is based on sincerity

Paying taxes in accordance with the law, hand in hand, harmonious society and heart to heart