Much business has already been done by the 18 clubs in the Bundesliga, but FC Bayern Munich, Bayer 04 Leverkusen and FC Schalke 04 are among those finalising details of player transfers before Friday's 18.00 CEST deadline.
Here you can skim through bundesliga.com's overview of the latest transfer goings-on from in and around the Bundesliga...
Hamburger SV have completed the biggest signing of transfer deadline day by bringing in fan favourite Rafael van der Vaart on a three-year contract from Tottenham Hotspur.
FC Schalke 04 pulled off a major deal by sealing the loan signing of Ibrahim Afellay from Spanish giants FC Barcelona.
FC Augsburg have terminated the contract of Dutch defender Lorenzo Davids.
SpVgg Greuther Fürth have strengthened their forward line by signing experienced striker Edu on loan from FC Schalke 04.
Promising young German striker Samed Yesil swapped the Bundesliga for the Premier League, opting to joining Liverpool FC from Bayer 04 Leverkusen, signing a four-year deal at the Anfield club.
Hoffenheim announced another departure after severing ties with Ryan Babel by selling Isaac Vorsah to RB Salzburg, where the player is reunited with former Hoffenheim coach Ralf Rangnick. Coming to Hoffenheim, meanwhile, is Patrick Ochs from Vfl Wolfsburg.
Mainz picked up two new players late in the day with Nikita Rukavytsya arriving from Hertha BSC Berlin and Anthony Ujah coming from 1. FC Köln.
SV Werder Bremen took one final foray into the transfer market too, taking Martin Kobylanski from Energie Cottbus.
Just before the gong, Wolfsburg offloaded another player with Ashkan Dejagah moving to Fulham.
TSG 1899 Hoffenheim and Dutch winger Ryan Babel part company after the player's contract was mutually terminated by the club. Babel scored six goals in 51 appearances, after signing from Liverpool FC in 2011.
Perhaps the biggest signing of the summer so far took place in Bavaria, where FC Bayern Munich announced the capture of Spanish international Javi Martinez after protracted negotiations.
Bayer 04 Leverkusen swooped for goalkeeper Michael Rensing from neighbours 1. FC Köln, now in the Bundesliga 2.
Hamburger SV added to their squad by signing Petr Jiracek from VfL Wolfsburg.